茶叶多糖铁的合成及其铁含量的测定

doi:10.13305/j.cnki.jts.2005.01.013

Abstract

Abstract: Tea polysaccharide was abstracted with warm water, tea polysaccharide-Fe（Ⅲ）complex(TPC) was synthesized with tea polysaccharide and FeCl₃ under the alkaline condition, The determination of Fe（Ⅲ） was conducted with the method of ferroin-Fe（Ⅱ） and atomic absorption spectrophometry. The results showed that: TPC is heavy brownish red and shapeless powder. It can dissolve in water, its solution is very stable at the pH from 3 to 12. Content of Fe（Ⅲ）in TPC is 20.71% by the method of ferroin- Fe（Ⅱ）and 20.13% by the method of atomic absorption.

Key words: Tea polysaccharide, Polysaccharide-Fe（Ⅲ）complex, Synthesis, Determination of iron

CLC Number:

S571.1
Q539

LI Yu-xian, PEI Xiao-hong. Synthesis of tea polysaccharide-Fe（Ⅲ）complex and determination of Fe（Ⅲ）[J]. Journal of Tea Science, 2005, 25(1): 71-74.

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Synthesis of tea polysaccharide-Fe（Ⅲ）complex and determination of Fe（Ⅲ）

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